Using Adsense on 10+ domains- Potentially dangerous?

[superpower]

I've been running 2 flasgship websites with Adsense for the last few years with excellent results. One of these sites in particular is performing at an exceptionally high CPM $ level.

This year I plan to develop at least 5-10 new niche domains in entirely different topics. These will be microsites of <1000 pages, and due to the product I anticipate a lower CPM than my flagship sites.

However, I'm concerned that having a bunch of newer, less-developed domains all associated with adsense may cause some kind of issue/penalty either in the CPM pricing or in the SERPs.

In other words I don't want to release 5 or 10 less-developed sites and have that totally tank the CPM/rankings for my main flagship sites.

So I am curious to poll some of you out there...

1. How many domains do you have associated with one Adsense acct.?

2. Do you have experience or an opinion about whether having say 15, 25, 50 etc. domains associated with an Adsense account would be detrimental to CPM pricing or in the SERPs?

[turbohost]

I have about 150 sites on one account and I didn't have a drop in ecpm.

[frox]

CPM: as you correctly suspect, it might happen that a poorly convering site lowers the smartpricing on all the account.
If, as you say, you have a very god CPM, I would introduce one site at a time, then wait 15-20 days: if the eCPM drops (particularly, if you notice a drop in the average EPC on the main site) try removing the new site, and wait...

SERP: there is no reason it should hurt, unless you do anithing that penalizes you (link farms, duplicated pages etc.)

[martinibuster]

>>>lowers the smartpricing on all the account.

It would be interesting to hear other's experience with having multiple sites.

I'm aware of the conventional wisdom, but I'm not seeing an across the board penalty for having one bad egg in the bunch. Some pages have better earnings than others, some channels do extraordinarily well while others do pennies. Quite a variety.

[edited by: martinibuster at 1:20 am (utc) on Jan. 25, 2007]

[superpower]

Thanks for the feedback.

That's interesting turbohost that you have that many domains and don't see any problems. I guess that puts me to ease a bit.

One thing I am concerned about is the smartpricing as mentioned by frox and martinibuster...

Anybody else?

[Jane_Doe]

It would be interesting to hear other's experience with having multiple sites.

I have multiple sites on one Adsense account with really wide ranging CPMs and they seem to vary independently of each other. To me it does not seem like one poor converting site impacts the other sites in my account.

[I Will Make It]

This year I plan to develop at least 5-10 new niche domains in entirely different topics. These will be microsites of <1000 pages, and due to the product I anticipate a lower CPM than my flagship sites.

Sorry for asking, but do you really mean that you are going to develop and release up to 10 sites, where each of the sites will have up to 1000 pages?

Are you going to write 10.000 pages in ONE YEAR?
And since you are on the adsense forum, my guess is that you are planning to put adsense on them?

Please tell me how you're going to do that, without braking the TOS

[edited by: I_Will_Make_It at 4:53 pm (utc) on Jan. 25, 2007]

[activeco]

In my case it was very obvious.
After adding more topically unrelated domains to my two main sites into my account, the EPC from the main sites was drastically reduced, even more than 90%!
Total traffic was trippled, while total earnings even declined, while having about the same CTR.

[jomaxx]

I don't think the smart pricing calculation is as brain-dead as some have claimed (one bad site poisoning your whole account), but there does seem to be some validity to the idea that low-quality traffic hurts your account disproportionately. Many people have reported reducing their impressions and having their overall income go up. I suggest you proceed cautiously.

[trannack]

I have about 15 sites and have seen no impact on eCPM.

[Jane_Doe]

Total traffic was trippled, while total earnings even declined, while having about the same CTR.

But this sometimes happens to people who don't even add other sites to their accounts. Did you take off the newest sites, and if so, did your income go back up?

[activeco]

No, that was almost two years ago.
Since then, traffic and earnings remained on the same level, maybe with slight decrease. I don't care/do much about adsense, though.
But, yes, it's about time to remove some sites from the account (actually pull out the code and remove channels).

[superpower]

Are you going to write 10.000 pages in ONE YEAR? And since you are on the adsense forum, my guess is that you are planning to put adsense on them?Please tell me how you're going to do that, without braking the TOS

The short answer is I'm not going to break the TOS. And I'm not necessarily going to write 10,000 pages either.

[AZEvil]

Are you going to write 10.000 pages in ONE YEAR?
And since you are on the adsense forum, my guess is that you are planning to put adsense on them?

Please tell me how you're going to do that, without braking the TOS

You would actually be surprised what people can do by thinking outside the box and putting some good old fashioned hard work and money into projects. 10,000 pages in a year is nothing compared to what some people are able to accomplish and do a great job with. For example, the sites I work on get anywhere from 50-100 new pages a day. Those pages are written by people who are passionate about what they are writing about. The sites rank well and have huge amounts of repeat traffic because people love the content. At one point last year, one of my sites was getting 100+ new pages a day and the content was being syndicated on part of AOL...that's how you do it without breaking the AdSense TOS.

[superpower]

That's exactly right AZEvil.

One of my flagship sites generates around 6,000 new pages per week. The other is about 200 new pages per week, although if I was focusing on it, I'm sure it would be much more.

The key is thinking outside the box. There are many, many paths to getting tons pages of content that does not break the TOS.

Brett Tabke knows this--how many new pages does WebmasterWorld generate per week?